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相关概念视频

Reporter Genes02:11

Reporter Genes

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Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
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High Yield Expression of Recombinant Human Proteins with the Transient Transfection of HEK293 Cells in Suspension
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在使用PEI的Expi293F细胞中更新了短暂基因表达协议.

Gustaf Hederoth1, Andrés de la Rosa1, Ana Godec1

  • 1Department of Pharmacy, Uppsala University, Uppsala, Sweden.

Frontiers in bioengineering and biotechnology
|December 19, 2025
PubMed
概括
此摘要是机器生成的。

这项研究优化了抗体生产的短暂基因表达 (TGE). 主要改进包括降低成本,加快工作流程和增加容量,使治疗性蛋白质生产更有效率.

关键词:
在Expi293F中使用.PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI PEI what is what is what is who is who is who is who is who is who is who is who is who is who is who is who is who is who is who is who is who is who is who is who is who is who is who is who is who is who is who is who is who蜂是一种纯粹的蜂.实验室规模的实验室规模.更新协议 更新协议 更新协议鱼的精子 DNA DNA转化过程中的转化.过渡性基因表达协议协议

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科学领域:

  • 生物技术是生物技术.
  • 蛋白质工程是指蛋白质工程.
  • 生物制药制造业 生物制药制造业

背景情况:

  • 暂时基因表达 (TGE) 对于快速的蛋白质治疗生产至关重要,特别是需要转化后修改的抗体.
  • 以前的协议使复杂抗体的高效TGE成为可能.
  • 需要进一步优化TGE工作流程的成本,速度和容量.

研究的目的:

  • 为增强抗体生产提供一个优化的TGE协议.
  • 为了降低与TGE介质和等离子体DNA相关的成本.
  • 为了加快工作流速并增加生产能力.

主要方法:

  • 用BalanCD HEK293介质取代Expi293介质,降低了90%的成本.
  • 纳入鱼精子DNA作为填充剂,以尽量减少等离子体DNA的使用.
  • 使用藻土 (Celpure®) 快速封存细胞/碎片,将收获时间缩短到15分钟.
  • 推的HiScreen Fibro PrismA柱子用于加速下游净化.

主要成果:

  • 在介质和等离子体DNA方面大幅降低成本.
  • 收获时间从2.5小时缩短到15分钟.
  • 简化工作流程,保持抗体产量和效率.
  • 在Expi293F单元中增强TGE的可扩展性和吞吐量.

结论:

  • 优化的TGE协议显著提高了抗体生产的成本效益,速度和能力.
  • 这些改进使得TGE成为生物制药制造的更可行和更有效的方法.
  • 该协议促进了可扩展和高吞吐量治疗蛋白质的生产.